AirHint found the following cheapest return flights from Chongqing (CKG) to Seoul (ICN) in September 2025 (see full year).

Return flights

05 Sep - 11 Sep	China Southern
14 Sep - 20 Sep	China Southern
11 Sep - 13 Sep	China Southern
06 Sep - 13 Sep	China Southern
19 Sep - 24 Sep	Hainan Airlines
26 Sep - 10 Oct	Hainan Airlines
26 Sep - 28 Sep	Hainan Airlines
14 Sep - 21 Sep	China Southern
18 Sep - 25 Sep	Hainan Airlines
11 Sep - 16 Sep	China Southern
09 Sep - 16 Sep	Hainan Airlines

Also check the deals for one-way flights from Chongqing to Seoul in September.

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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Cheapest return flights from Chongqing to Seoul in September from $210

Return flights